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Crystal structure of cyclo-bis-(μ4-2,2-di-allyl-malonato-κ(6) O (1),O (3):O (3):O (1'),O (3'):O (1'))tetra-kis-(triphenyl-phosphane-κP)tetra-silver(I).

Frenzel P, Jakob A, Schaarschmidt D, Rüffer T, Lang H - Acta Crystallogr Sect E Struct Rep Online (2014)

Bottom Line: In the tetra-nuclear mol-ecule of the title compound, [Ag4(C9H10O4)2(C18H15P)4], the Ag(I) ion is coordinated by one P and three O atoms in a considerably distorted tetra-hedral environment.The shortest intra-molecular Ag⋯Ag distance of 3.9510 (3) Å reveals that no direct d (10)⋯d (10) inter-actions are present.Four weak intra-molecular C-H⋯O hydrogen bonds are observed in the crystal structure of the title compound, which most likely stabilize the tetra-nuclear silver core.

View Article: PubMed Central - HTML - PubMed

Affiliation: Technische Universität Chemnitz, Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, 09107 Chemnitz, Germany.

ABSTRACT
In the tetra-nuclear mol-ecule of the title compound, [Ag4(C9H10O4)2(C18H15P)4], the Ag(I) ion is coordinated by one P and three O atoms in a considerably distorted tetra-hedral environment. The two 2,2-di-allyl-malonate anions bridge four Ag(I) ions in a μ4-(κ(6) O (1),O (3):O (3):O (1'),O (3'):O (1')) mode, setting up an Ag4O8P4 core (point group symmetry -4..) of corner-sharing tetra-hedra. The shortest intra-molecular Ag⋯Ag distance of 3.9510 (3) Å reveals that no direct d (10)⋯d (10) inter-actions are present. Four weak intra-molecular C-H⋯O hydrogen bonds are observed in the crystal structure of the title compound, which most likely stabilize the tetra-nuclear silver core.

No MeSH data available.


Structure fragment showing the cyclic corner-sharing arrangement of the AgO3P polyhedra giving the tetra­nuclear silver core of composition Ag4O8P4.
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fig2: Structure fragment showing the cyclic corner-sharing arrangement of the AgO3P polyhedra giving the tetra­nuclear silver core of composition Ag4O8P4.

Mentions: The cyclic corner-sharing arrangement of the described O3P tetra­hedra gives the tetra­nuclear structure of (I) (Fig. 2 ▶). The four silver ions are oriented in a butterfly-like arrangement, which delimits the title compound from Ag4O4 heterocubanes (Jakob et al., 2011 ▶; Zhang et al., 2008 ▶, Kühnert et al., 2007 ▶) in which the four silver ions form a tetra­hedron. In contrast, there are some similarities with [bis­(1,8-naphthalenedi­carboxyl­ato)][tetra­kis­(tri­phenyl­phosphane)silver(I)] (van der Ploeg et al., 1979 ▶); however, in the structure of this compound one silver ion is penta­coordinated.


Crystal structure of cyclo-bis-(μ4-2,2-di-allyl-malonato-κ(6) O (1),O (3):O (3):O (1'),O (3'):O (1'))tetra-kis-(triphenyl-phosphane-κP)tetra-silver(I).

Frenzel P, Jakob A, Schaarschmidt D, Rüffer T, Lang H - Acta Crystallogr Sect E Struct Rep Online (2014)

Structure fragment showing the cyclic corner-sharing arrangement of the AgO3P polyhedra giving the tetra­nuclear silver core of composition Ag4O8P4.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4257203&req=5

fig2: Structure fragment showing the cyclic corner-sharing arrangement of the AgO3P polyhedra giving the tetra­nuclear silver core of composition Ag4O8P4.
Mentions: The cyclic corner-sharing arrangement of the described O3P tetra­hedra gives the tetra­nuclear structure of (I) (Fig. 2 ▶). The four silver ions are oriented in a butterfly-like arrangement, which delimits the title compound from Ag4O4 heterocubanes (Jakob et al., 2011 ▶; Zhang et al., 2008 ▶, Kühnert et al., 2007 ▶) in which the four silver ions form a tetra­hedron. In contrast, there are some similarities with [bis­(1,8-naphthalenedi­carboxyl­ato)][tetra­kis­(tri­phenyl­phosphane)silver(I)] (van der Ploeg et al., 1979 ▶); however, in the structure of this compound one silver ion is penta­coordinated.

Bottom Line: In the tetra-nuclear mol-ecule of the title compound, [Ag4(C9H10O4)2(C18H15P)4], the Ag(I) ion is coordinated by one P and three O atoms in a considerably distorted tetra-hedral environment.The shortest intra-molecular Ag⋯Ag distance of 3.9510 (3) Å reveals that no direct d (10)⋯d (10) inter-actions are present.Four weak intra-molecular C-H⋯O hydrogen bonds are observed in the crystal structure of the title compound, which most likely stabilize the tetra-nuclear silver core.

View Article: PubMed Central - HTML - PubMed

Affiliation: Technische Universität Chemnitz, Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry, 09107 Chemnitz, Germany.

ABSTRACT
In the tetra-nuclear mol-ecule of the title compound, [Ag4(C9H10O4)2(C18H15P)4], the Ag(I) ion is coordinated by one P and three O atoms in a considerably distorted tetra-hedral environment. The two 2,2-di-allyl-malonate anions bridge four Ag(I) ions in a μ4-(κ(6) O (1),O (3):O (3):O (1'),O (3'):O (1')) mode, setting up an Ag4O8P4 core (point group symmetry -4..) of corner-sharing tetra-hedra. The shortest intra-molecular Ag⋯Ag distance of 3.9510 (3) Å reveals that no direct d (10)⋯d (10) inter-actions are present. Four weak intra-molecular C-H⋯O hydrogen bonds are observed in the crystal structure of the title compound, which most likely stabilize the tetra-nuclear silver core.

No MeSH data available.